Abstract
The detrimental effects of Pb on the environment and human health have provided the driving force for replacement of Pb–Sn solders with Pb-free alternatives. Sn-rich Pb-free solder alloys with silver and copper alloying additions have higher strength but lower elongation-to-failure than Pb–Sn solders. Thus, these alloys are more susceptible to failure under mechanical shock, drop, and thermal fatigue conditions. In this article, mechanical tensile testing of NiTi–Sn3.5Ag single fiber composites demonstrates superelastic behavior of the composite with 85% strain recovery. Fatigue experiments show an evolution in damage over cycles, and an S–N curve shows sharp transition between a nearly vertical low-cycle fatigue behavior and the high-cycle fatigue regime. The solder composite exhibits constant fatigue strength over the superelastic range of the NiTi fiber.
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Kang S, Sarkhel AK (1994) J Electron Mater 23:701
Frear DR, Vianco PT (1994) Metall Trans A 25:1509
Glazer J (1995) Int Mater Rev 40:65
Abtew M, Selvaduray G (2000) Mater Sci Eng R Rep 27:95
Plumridge WJ (2005) Monatsh Chem 136:1811
Vianco PT, Frear DR (1993) J Electron Mater 45:14
Choi S, Subramanian KN, Lucas JP, Bieler TR (2000) J Electron Mater 29:1249
Terashima S, Yoshiharu K, Takuya H, Masamoto T (2003) J Electron Mater 32:1527
Chawla N, Chawla KK (2006) Metal matrix composites. Springer Press, New York
Otsuka K, Wayman CM (1998) Shape memory materials. Cambridge University Press, Cambridge, United Kingdom
Frick CP, Ortega AM, Tyber J, Maksound A, Maier HJ, Liu Y, Gall K (2005) Mater Sci Eng A 405:34
Shimamoto A, Zhao HY, Abe H (2004) Int J Fatigue 26:533
Vokoun D, Kafka V, Hu CT (2003) Smart Mater Struct 12:680
Wagner M, Sawaguchi T, Kausträter G, Höffken D, Eggeler G (2004) Mater Sci Eng A 378:105
Wang ZG, Zua XT, Fub YQ, Wang LM (2005) Thermochim Acta 428:199
Young JM, Van Vliet KJ (2005) J Biomed Mater Res 72:17
Zheng Y, Cui L, Schrooten J (2004) Appl Phys Lett 84:31
Brinson LC, Schmidtb I, Lammering R (2004) J Mech Phys Solids 52:1549
Liu JY, Lu H, Chen JM, Alain C, Wu T (2008) J Mater Sci 43:4921. doi:https://doi.org/10.1007/s10853-008-2716-9
Wei ZG, Sandstrom R, Miyazaki S (1998) J Mater Sci 33:3763. doi:https://doi.org/10.1023/A:1004674630156
Boccaccini AR, Peters C, Roether JA, Eifler D, Misra SK, Minay EJ (2006) J Mater Sci 41:8152. doi:https://doi.org/10.1007/s10853-006-0556-z
Dutta I, Majumdar BS, Pan D, Horton WS, Wright W, Wang ZX (2004) J Electron Mater 33:258
Wang ZX, Dutta I, Majumdar BS (2006) Scripta Mater 54:627
Wang ZX, Dutta I, Majumdar BS (2006) Mater Sci Eng A 421:133
Kelly A (1987) Strong solids. Clarendon Press, Oxford, p 157
Coughlin JP, Williams JJ, Crawford GA, Chawla N (2009) Metall Mater Trans A (in press)
Acknowledgements
The authors acknowledge financial support for this research from Intel Corporation (Dr. D. Suh, Dr. R. Mahajan, and Dr. V. Wakharkar). The authors also thank Gordon Moore from the Department of Chemistry and Biochemistry at Arizona State University for his help with the WDS, and the Memry Corporation for providing the NiTi fibers used in this study.
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Coughlin, J.P., Williams, J.J. & Chawla, N. Mechanical behavior of NiTi shape memory alloy fiber reinforced Sn matrix “smart” composites. J Mater Sci 44, 700–707 (2009). https://doi.org/10.1007/s10853-008-3188-7
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DOI: https://doi.org/10.1007/s10853-008-3188-7